## Highlights - Speaker 0: were all out there. Obviously they weren't released to the general public. Um, he didn't want to threaten national security Speaker 1: playing pranks like that and actually caltech. Um, I don't know if Speaker 0: this is still the case, but caltech where he was employed was always known for, I'm doing very technologically challenging pranks. They're not known for their athletic prowess at caltech, sorry, caltech, but Speaker 1: they were known for example, um Speaker 0: disrupting the scoreboard at the Rose Bowl in Pasadena for instance and things of that sort through technological feats, at least at the time required a lot of um playfulness and technological prowess. So if you look in science or you look in art or Speaker 1: you look in medicine or you look in any domain. what you find is the people that continue to evolve. New [(Time 1:06:59)](https://www.airr.io/quote/6419c2913c8e5e1eb214210f) - Speaker 0: Born until about age 25 and thereafter. So from about about I wanna emphasize approximately age 25 onward Speaker 1: neural plasticity occurs through the process that Speaker 0: as exactly as I described before. Speaker 1: Focus, rest, focus, rest. We focus very intensely. We can't do the thing, we can't do the new movement, we can't do the golf swing, we can't learn the math. Speaker 0: We try we try we try we try we sleep a few nights and then all of a sudden we can do it right because the rewiring actually occurs during depressed or naps, but mostly during deep sleep From birth till about age 20 Speaker 1: five. However, we can learn things, new things and new contingencies, Speaker 0: not just negative things and traumatic things Speaker 1: through somewhat passive exposure to those [(Time 1:11:40)](https://www.airr.io/quote/64ecd59e9672e53dfe2b0646) - notes:: After about age 25 Nuro plasticity and rewiring really start to take place during deep sleep - Speaker 1: early in development. The nerve connections are much more extensive. It's like having a google maps that where everything is connected to everything through tiny little cross Speaker 0: streets and the whole thing is just a complete mess. Speaker 1: But then by taking particular routes Speaker 0: of behavior, Speaker 1: of thought of emotion, certain routes become well established and the other routes that are not taken simply disappear Speaker 0: now in the biological context, in the Speaker 1: brain we call that process pruning and the simple way to envision this is early development. You have many, Speaker 0: many more neurons than you will have as an adult. Speaker 1: Those neurons are extensively interconnected And approximately 40% of those interconnections will disappear by the time you're 25 years old, [(Time 1:13:45)](https://www.airr.io/quote/64ecd5d99672e53dfe2b073e) - notes:: What does emphasis discussing synaptic pruning? I wonder how neural plasticity is reflected in the autistic population given the reduced synaptic pruning and neuronal density in the population - Speaker 0: so forth. But in general, when I run, I run forward, I don't tend to run backward that much and I might do that for a few minutes at the end, but not so much throughout the entire run. Speaker 1: Running doesn't lend Speaker 0: itself to a lot of novel forms of movement, lateral movements. So, so for the nerds out there moving in the sagittal plane, um or angled Speaker 1: movements, but it does appear that things like dance or sports, where you end up generating a lot of dynamic movements where there's jumping, where there's movement at different angles where there's ducking, where there's leaping, that basically Speaker 0: involves a lot of dynamic movement and aren't Speaker 1: just strictly linear. Those seem to open the portals for plasticity and that's because they mimic Speaker 0: a lot of the brain circuitry that is associated with play. [(Time 1:26:03)](https://www.airr.io/quote/64ecdd099672e53dfe2b1fb1) - notes:: So by this assertion parkour is actually really great for promoting neural plasticity